21041510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300593}}^1$

素因数の和:300607

約数の個数: 16

約数和(自身を含む): 43285536

約数和(自身を除く): 22244026

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300593, 601186, 1502965, 2104151, 3005930, 4208302, 10520755, 21041510]

約数ペア:

[(1, 21041510), (2, 10520755), (5, 4208302), (7, 3005930), (10, 2104151), (14, 1502965), (35, 601186), (70, 300593)]